syzkaller login: [ 39.879062][ T29] kauditd_printk_skb: 5 callbacks suppressed [ 39.879152][ T29] audit: type=1400 audit(39.810:68): avc: denied { read write } for pid=2969 comm="sftp-server" name="null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 39.880394][ T29] audit: type=1400 audit(39.810:69): avc: denied { open } for pid=2969 comm="sftp-server" path="/dev/null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 Warning: Permanently added '[localhost]:17579' (ED25519) to the list of known hosts. [ 87.929831][ T29] audit: type=1400 audit(87.850:70): avc: denied { execute } for pid=2978 comm="sh" name="syz-executor525968752" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 88.005525][ T29] audit: type=1400 audit(87.920:71): avc: denied { execute_no_trans } for pid=2978 comm="sh" path="/syz-executor525968752" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 88.621004][ T29] audit: type=1400 audit(88.540:72): avc: denied { execmem } for pid=2978 comm="syz-executor525" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 executing program [ 88.643587][ T29] audit: type=1400 audit(88.570:73): avc: denied { ioctl } for pid=2979 comm="syz-executor525" path="/dev/uinput" dev="devtmpfs" ino=711 ioctlcmd=0x5504 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 88.646985][ T2979] ------------[ cut here ]------------ [ 88.647296][ T2979] WARNING: CPU: 1 PID: 2979 at mm/page_alloc.c:4543 __alloc_pages+0x1048/0x115c [ 88.648185][ T2979] Modules linked in: [ 88.648547][ T2979] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 88.649011][ T2979] CPU: 1 PID: 2979 Comm: syz-executor525 Not tainted 6.8.0-rc3-syzkaller #0 [ 88.649221][ T2979] Hardware name: ARM-Versatile Express [ 88.649444][ T2979] Backtrace: [ 88.649663][ T2979] [<81835bec>] (dump_backtrace) from [<81835ce8>] (show_stack+0x18/0x1c) [ 88.650090][ T2979] r7:00000000 r6:82622dc4 r5:60000093 r4:81fbd108 [ 88.650504][ T2979] [<81835cd0>] (show_stack) from [<81853204>] (dump_stack_lvl+0x48/0x54) [ 88.650798][ T2979] [<818531bc>] (dump_stack_lvl) from [<81853228>] (dump_stack+0x18/0x1c) [ 88.651579][ T2979] r5:00000000 r4:8284fd18 [ 88.651934][ T2979] [<81853210>] (dump_stack) from [<81836790>] (panic+0x120/0x378) [ 88.652423][ T2979] [<81836670>] (panic) from [<802439cc>] (print_tainted+0x0/0xa0) [ 88.652773][ T2979] r3:8260c484 r2:00000001 r1:81fa5ae0 r0:81fad7ac [ 88.652957][ T2979] r7:8049b0dc [ 88.653079][ T2979] [<80243958>] (check_panic_on_warn) from [<80243bc0>] (__warn+0x7c/0x180) [ 88.653310][ T2979] [<80243b44>] (__warn) from [<80243e3c>] (warn_slowpath_fmt+0x178/0x1f4) [ 88.653561][ T2979] r8:00000009 r7:81fd60b4 r6:ebae9c1c r5:83766c00 r4:00000000 [ 88.653722][ T2979] [<80243cc8>] (warn_slowpath_fmt) from [<8049b0dc>] (__alloc_pages+0x1048/0x115c) [ 88.654031][ T2979] r10:00000014 r9:83fb5204 r8:00000000 r7:83766c00 r6:00000dc0 r5:00000000 [ 88.654254][ T2979] r4:00000014 [ 88.654382][ T2979] [<8049a094>] (__alloc_pages) from [<8049fbf0>] (__kmalloc_large_node+0x50/0xac) [ 88.654644][ T2979] r10:80f0d720 r9:83fb5204 r8:00000000 r7:83766c00 r6:00000dc0 r5:00000000 [ 88.655223][ T2979] r4:00000014 [ 88.655589][ T2979] [<8049fba0>] (__kmalloc_large_node) from [<804a6c24>] (__kmalloc+0x364/0x484) [ 88.655935][ T2979] r7:83766c00 r6:00000dc0 r5:ffffffff r4:7acba417 [ 88.656109][ T2979] [<804a68c0>] (__kmalloc) from [<80f0d720>] (input_mt_init_slots+0x60/0x1f0) [ 88.656376][ T2979] r10:83766c00 r9:83fb5204 r8:00000000 r7:00000000 r6:84123400 r5:00000000 [ 88.656583][ T2979] r4:7acba417 [ 88.656706][ T2979] [<80f0d6c0>] (input_mt_init_slots) from [<80f3c9f8>] (uinput_ioctl_handler+0x8e4/0xb4c) [ 88.657027][ T2979] r8:00000000 r7:00000000 r6:83fb5200 r5:00000000 r4:84123400 [ 88.657213][ T2979] [<80f3c114>] (uinput_ioctl_handler) from [<80f3cc74>] (uinput_ioctl+0x14/0x18) [ 88.657498][ T2979] r9:00000003 r8:83572e40 r7:00000000 r6:83572e40 r5:00000000 r4:00005501 [ 88.657746][ T2979] [<80f3cc60>] (uinput_ioctl) from [<80501cac>] (sys_ioctl+0x118/0xb58) [ 88.658044][ T2979] [<80501b94>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c) [ 88.658396][ T2979] Exception stack(0xebae9fa8 to 0xebae9ff0) [ 88.658735][ T2979] 9fa0: ffffffff 00000000 00000003 00005501 00000000 00000000 [ 88.658998][ T2979] 9fc0: ffffffff 00000000 00000000 00000036 00010000 0000003f 00000006 79c06575 [ 88.659220][ T2979] 9fe0: 7ef80c68 7ef80c58 00010ca8 0002eea0 [ 88.659441][ T2979] r10:00000036 r9:83766c00 r8:80200288 r7:00000036 r6:00000000 r5:00000000 [ 88.659661][ T2979] r4:ffffffff [ 88.660421][ C0] CPU0: stopping [ 88.660604][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-rc3-syzkaller #0 [ 88.660661][ C0] Hardware name: ARM-Versatile Express [ 88.660687][ C0] Backtrace: [ 88.660728][ C0] [<81835bec>] (dump_backtrace) from [<81835ce8>] (show_stack+0x18/0x1c) [ 88.660813][ C0] r7:00000014 r6:81b0f9f0 r5:600001d3 r4:81fbd108 [ 88.660825][ C0] [<81835cd0>] (show_stack) from [<81853204>] (dump_stack_lvl+0x48/0x54) [ 88.660886][ C0] [<818531bc>] (dump_stack_lvl) from [<81853228>] (dump_stack+0x18/0x1c) [ 88.660964][ C0] r5:00000000 r4:00000004 [ 88.660974][ C0] [<81853210>] (dump_stack) from [<8020fb78>] (do_handle_IPI+0x2ac/0x2d8) [ 88.661020][ C0] [<8020f8cc>] (do_handle_IPI) from [<8020fbc4>] (ipi_handler+0x20/0x28) [ 88.661108][ C0] r9:8261adc0 r8:82601e50 r7:00000014 r6:81b0f9f0 r5:82c0cc80 r4:82c96d00 [ 88.661129][ C0] [<8020fba4>] (ipi_handler) from [<802c5004>] (handle_percpu_devid_irq+0x9c/0x2cc) [ 88.661181][ C0] [<802c4f68>] (handle_percpu_devid_irq) from [<802be790>] (generic_handle_domain_irq+0x30/0x40) [ 88.661247][ C0] r10:00000000 r9:8261adc0 r8:00000000 r7:df80a00c r6:824b0bc0 r5:df80a000 [ 88.661262][ C0] r4:8260cd28 r3:00010001 [ 88.661271][ C0] [<802be760>] (generic_handle_domain_irq) from [<802011c4>] (gic_handle_irq+0x68/0x7c) [ 88.661308][ C0] [<8020115c>] (gic_handle_irq) from [<81853ac8>] (generic_handle_arch_irq+0x60/0x80) [ 88.661360][ C0] r7:82601ed8 r6:8213c640 r5:8217824c r4:824b2224 [ 88.661369][ C0] [<81853a68>] (generic_handle_arch_irq) from [<80200b74>] (__irq_svc+0x74/0xac) [ 88.661407][ C0] Exception stack(0x82601ed8 to 0x82601f20) [ 88.661429][ C0] 1ec0: 00000000 81fbd108 [ 88.661456][ C0] 1ee0: 00042994 00000001 8261adc0 8260c494 00000000 8260c4b8 00000000 00000000 [ 88.661485][ C0] 1f00: 00000000 82601f44 82601f18 82601f28 81854720 8185522c 20000013 ffffffff [ 88.661514][ C0] r9:8261adc0 r8:00000000 r7:82601f0c r6:ffffffff r5:20000013 r4:8185522c [ 88.661524][ C0] [<818551e0>] (default_idle_call) from [<8029858c>] (do_idle+0x268/0x2d0) [ 88.661577][ C0] r7:8260c4b8 r6:8261adc0 r5:8260c494 r4:00000000 [ 88.661587][ C0] [<80298324>] (do_idle) from [<80298928>] (cpu_startup_entry+0x30/0x34) [ 88.661646][ C0] r10:8284f000 r9:8261a8b0 r8:820cdb88 r7:00000000 r6:8260c440 r5:82625e94 [ 88.661659][ C0] r4:000000e9 [ 88.661667][ C0] [<802988f8>] (cpu_startup_entry) from [<81855534>] (rest_init+0xdc/0xe0) [ 88.661706][ C0] [<81855458>] (rest_init) from [<82400bc4>] (arch_post_acpi_subsys_init+0x0/0x20) [ 88.661744][ C0] [<82400bb4>] (arch_call_rest_init) from [<8240129c>] (start_kernel+0x688/0x6ac) [ 88.661770][ C0] [<82400c14>] (start_kernel) from [<00000000>] (0x0) [ 88.668427][ T2979] Rebooting in 86400 seconds.. VM DIAGNOSIS: 00:16:29 Registers: info registers vcpu 0 CPU#0 R00=00000000 R01=81fbd108 R02=00042989 R03=8021b420 R04=8261adc0 R05=8260c494 R06=00000000 R07=8260c4b8 R08=00000000 R09=00000000 R10=00000000 R11=82601f24 R12=82601f28 R13=82601f18 R14=80208ce8 R15=8021b428 PSR=60000093 -ZC- A S svc32 s00=00000000 s01=00000000 d00=0000000000000000 s02=00000000 s03=00000000 d01=0000000000000000 s04=00000000 s05=00000000 d02=0000000000000000 s06=00000000 s07=00000000 d03=0000000000000000 s08=00000000 s09=00000000 d04=0000000000000000 s10=00000000 s11=00000000 d05=0000000000000000 s12=00000000 s13=00000000 d06=0000000000000000 s14=00000000 s15=00000000 d07=0000000000000000 s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000 info registers vcpu 1 CPU#1 R00=00000001 R01=04230422 R02=00000002 R03=eb0d9030 R04=83f04040 R05=00000000 R06=00000001 R07=20000093 R08=828521ac R09=00000057 R10=60000093 R11=ebae9998 R12=ebae995c R13=ebae9974 R14=8185feb8 R15=809780d8 PSR=80000093 N--- A S svc32 s00=00000000 s01=00000000 d00=0000000000000000 s02=00000000 s03=00000000 d01=0000000000000000 s04=00000000 s05=00000000 d02=0000000000000000 s06=00000000 s07=00000000 d03=0000000000000000 s08=00000000 s09=00000000 d04=0000000000000000 s10=00000000 s11=00000000 d05=0000000000000000 s12=00000000 s13=00000000 d06=0000000000000000 s14=00000000 s15=00000000 d07=0000000000000000 s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000